Thanks for uploading Image:Acrux.png. I notice the 'image' page currently doesn't specify who created the content, so the copyright status is therefore unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page.

If the media also doesn't have a copyright tag then you must also add one. If you created/took the picture, audio, or video then you can use {{GFDL-self}} to release it under the GFDL or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you. gildemax 16:52, 22 April 2006 (UTC)

As you noted in the description, this image was only released for non-commercial educational purposes. I'm afraid that Commons does not accept non-commercial licenses; see Commons:Licensing. --Davepape 23:48, 16 April 2007 (UTC)

Hi, You included this artist impression of a Black Hole. Unfortunately it is not a good artists impression as they obviously didn't understand what consitutes a black hole. I hope to replace it. --81.132.246.132 23:10, 27 August 2007 (UTC)

I came here to say exactly the opposite. This picture is impressive, and fits with what I would expect (except that I would have expected some distortion with the stars). How was this image created? The proper way of doing this would be with a database with star information, and some heavy curved-space raytracing, and it looks like this might just be what has been done here. 193.157.233.147 20:27, 11 September 2007 (UTC)

It was indeed done by a ray tracing program in curved space. This should be explained some days in an article published in a peer reviewed journal, when I have time to write down all this. Btw, the star always appear as poinlike objets. The fact that they have an extended area on the screen results from saturation effects from your optical system, just as in usual astronomy pictures. Actually the hard part of the work lies in distorting the image, but not the stars (apart from the amplification and redshift/blueshift). Alain r 09:50, 15 October 2007 (UTC)

Thanks for uploading Image:PPdot2.png. I notice the image page currently doesn't specify who created the content, so the copyright status is unclear. If you have not created this media yourself then you need to argue that we have the right to use the media on Wikimedia Commons (see copyright tagging below). If you have not created the media yourself then you should also specify where you found it, i.e., in most cases link to the website where you got it, and the terms of use for content from that page. If the content is a derivative of a copyrighted work, you need to supply the names and a licence of the original authors as well.

If the media also doesn't have a copyright tag, then you must also add one. If you created/took the picture, audio, or video then you can use {{self|cc-by-sa-3.0}} to release it under the Creative Commons Attribution-ShareAlike license or {{PD-self}} to release it into the public domain. See Commons:Copyright tags for the full list of copyright tags that you can use.

Note that any unsourced and untagged images will be deleted one week after they have been uploaded, as described on criteria for speedy deletion. If you have uploaded other media, please check that you have specified their source and copyright tagged them, too. You can find all your uploads using the Gallery tool. Thank you.

If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

If you created this image, please note that the fact that it has been proposed for deletion does not necessarily mean that we do not value your kind contribution. It simply means that one person believes that there is some specific problem with it, such as a copyright issue.
In all cases, please do not take the deletion request personally. It is never intended as such. Thank you!

I was working on clearing up uncategorized images when I cam across the following files:

These files look to be to do with the CMBR and are obviously related, and could potentially be useful to explain some concept. Could you add a description as to what they are, so they could be used in an educational manner. If no description is added, it is quite possible they will be deleted as they can have no use without context. Cheers − Inductiveload (talk) 19:10, 3 February 2010 (UTC)